The ability of the piglet to adapt to changes in the environment during this period requires the staff to have a stronger sense of responsibility to save more piglets. According to a survey of causes of death over the years, 65%-78% of piglet deaths occurred during this period of time. The main reason is that the sow was crushed to death, stepped on death, and the slaughtered piglets were not able to suffocate in time for the production, the sows lacked milk and the weak piglets did not eat milk, and they were starved to death due to improper fostering, died of diarrhea, and died of freezing in winter.
It is of utmost importance that the sow must have a midwifery at the time of delivery, especially if the sow is born. In the case of confinement and midwifery, if the sow is found not to have seen the piglet after a certain period of time, the vagina is disinfected promptly, and the hand is cut into the birth canal with the hand that has been nail-smashed and has been disinfected and lubricated to correct the position of the fetus. Or pull the piglet out with the pig. If the piglet is too large or the birth canal is too narrow (especially for gilts) and the midwifery cannot be successful, then an appropriate amount of oxytocin is injected intramuscularly and an artificial midwifery is performed about 30 minutes later. Through long-term midwifery, the piglets that are culled often have weak breathing or suspended animation. When this happens, the mucus in the mouth and nose of the piglet and the mucous membranes on the body are first removed, the piglets are placed on the back, and the piglets are grasped on both hind legs in one hand. With the other hand on two front legs, rhythmically fold and separate the front and back ends of the piglets to the middle, and stop and breathe into the mouth and nose several times. After 2-3 minutes, the piglet can resume breathing.
For newly emerged piglets, immediately remove the mucus from the nose and mouth, use a net cloth to dry the entire body, and cut the umbilical cord to prevent the umbilical cords from intertwining between the piglets due to longer umbilical cord activities, pulling the umbilical cord, and cutting the umbilical cord at the same time. Ends, ear numbers, and even cuts can all be carried out together. On the one hand, the piglets do not bite the wound at this time. On the other hand, piglets can obtain antibody protection from colostrum and the wound is not susceptible to infection. At this time, the piglet was subjected to zero-time immunization of swine fever, oral streptomycin or gentamicin to prevent diarrhea, and sulfa drugs to prevent respiratory diseases. After the treatment, the piglet is placed in the incubator or a sack in the corner of the stall (incubator removed in summer). If it is found that the broken umbilicus and the broken tail are still bleeding, use medical sutures to stop the bleeding.
Generally, the sow needs 3-4 hours from the first to the last time of the sow, so that the piglet can eat the colostrum as soon as possible to enhance the disease resistance and shorten the sow production process. It is not necessary for the sow to be breast-fed after giving birth. After sows produce about 5 piglets, they are allowed to breastfeed. After eating enough colostrum, the piglet is taken back to the incubator and fed once every 1-2 hours. After 1-2 days, the piglets will automatically enter the incubator. When neonatal pigs suck colostrum, they often climb up and down to exchange nipples because of inadequacies in the teat and sucking experience. Even if the artificial assistance is used, the sow does not have obvious lactation behavior and is quiet, especially when Breastfeeding during delivery and nursing within 24 hours after delivery. After about 30 minutes, the piglets began to rest quietly on the sow's abdomen. Some piglets still had nipples in their mouths, but they did not suck milk. This indicated that they had eaten enough colostrum and the piglets could be taken back to the incubator. In the cold winter, due to the longer suckling colostrum sucking time, and the piglets are most vulnerable to freezing damage, we also use an infrared heat lamp with a lampshade in the ventral side of the sow to ensure the newborn piglet, in addition to the incubator. It is not frozen when it sucks colostrum for a long time.
After the sow is born, two penicillin or Houttuynia injections are injected to prevent obstetric diseases (especially artificially assisted sows), so as to reduce the incidence of aplastic hypoelysia due to obstetric diseases.
Special care for weak piglets to save more piglets, it is important to allow them to eat as much colostrum as possible. Several pairs of sows in the middle of the sow have enough milk, but when the sow is sleeping, the piglets above the upper position are out of reach, and the lower ones are usually under pressure. The weak piglets have no power to arch the teats, but also do not compete with the stronger piglets. . When artificially assisting in sucking colostrum, stronger piglets may be caught first to avoid sucking milk, and weak piglets may first eat enough colostrum in the middle pairs of teats, or artificially squeezed colostrum to feed weak piglets. In actual production, we believe that the artificial collaboration will fix the piglet teat temporarily, and the weak piglet will always be squeezed into the last milkless teat.
It is advisable for sows to have 10-12 piglets, with as many piglets per litter as possible, to make full use of the normal sow of the sow and to exert the lactating capacity of the sow, especially the young sows of the first and second child. The number of litters is too large. After the piglets have enough colostrum to feed their pigs and find that the sows have no milk or milk, the piglets should be sent out promptly. Piglets are recommended to be reared to sows within 2 to 3 days of delivery. Cotyled piglets and iodine around the nostrils of the sow are used to facilitate successful foster care. Piglets were born 2-3 days after the injection of iron preparations (rich blood, blood, etc.) to prevent piglets from anemia.
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